Is there such a thing as brown hair algae? I'm having an issue with it in my tank, especially after water changes. I have been cutting back on ferts and trying to find out what the imbalance is, but still struggling with it. It mostly builds up in the roots of my water lettuce. it can be rubbed off, but then bunches up on the substrate or collect in the vals and hygro. Thsi isn't the greatest picture, but one I happen to have that makes it easier than trying to explain.. suggestions?

